994006418 has 4 divisors (see below), whose sum is σ = 1491009630. Its totient is φ = 497003208.

The previous prime is 994006399. The next prime is 994006427. The reversal of 994006418 is 814600499.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 600103009 + 393903409 = 24497^2 + 19847^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248501603 + ... + 248501606.

Almost surely, 2^994006418 is an apocalyptic number.

994006418 is a deficient number, since it is larger than the sum of its proper divisors (497003212).

994006418 is a wasteful number, since it uses less digits than its factorization.

994006418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497003211.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 994006418 is about 31527.8673240040. The cubic root of 994006418 is about 997.9981345422.

The spelling of 994006418 in words is "nine hundred ninety-four million, six thousand, four hundred eighteen".